Three megahertz photon collection rate from an NV center with millisecond spin coherence

Abstract

Efficient collection of the broadband fluorescence of the diamond nitrogen vacancy center is essential for a range of applications in sensing, on-demand single photon generation, and quantum information processing. Here, we introduce a circular `bullseye' diamond grating enabling a collected photon rate of $(3.0\pm 0.1)\times 10^6$ counts per second from a single nitrogen-vacancy center with a spin coherence time of 1.7$\pm$0.1 ms. Back-focal-plane studies indicate efficient redistribution into low-NA modes.

6 pages, 9 figures

References in corpus (14)

• High-sensitivity diamond magnetometer with nanoscale resolution
• High-fidelity projective readout of a solid-state spin quantum register
• Unconditional quantum teleportation between distant solid-state qubits
• On-Chip Detection of Entangled Photons by Scalable Integration of Single-Photon Detectors
• Chip-scale nanofabrication of single spins and spin arrays in diamond
• Strongly enhanced photon collection from diamond defect centres under micro-fabricated integrated solid immersion lenses
• Dynamical Decoupling of a single electron spin at room temperature
• Coherent spin control of a nanocavity-enhanced qubit in diamond
• Nano-engineered Diamond Waveguide as a Robust Bright Platform for Nanomagnetometry Using Shallow Nitrogen Vacancy Centers
• Nano-fabricated solid immersion lenses registered to single emitters in diamond
• Photophysics of single nitrogen-vacancy centers in diamond nanocrystals
• Photonic nano-structures on (111) oriented diamond
• A low-loss, broadband antenna for efficient photon collection from a coherent spin in diamond
• A carrier relaxation bottleneck probed in single InGaAs quantum dots using integrated superconducting single photon detectors

Cited by in corpus (5)

• Cavity-enhanced single photon source based on the silicon vacancy center in diamond
• Ultrabright Linearly Polarized Photon Generation from a Nitrogen Vacancy Center in a Nanocube Dimer Antenna
• Resource-efficient fibre-integrated temporal multiplexing of heralded single photons
• Ultrabright room-temperature single-photon emission from nanodiamond nitrogen-vacancy centers with sub-nanosecond excited-state lifetime
• Near-unity collection efficiency from quantum emitters in bulk diamond using chirped circular dielectric gratings